Pumice is the only rock that floats on water.
14
The most expensive material on the planet is antimatter - worth $62.5 trillion per gram.
18
One ragweed plant can release as many as one billion grains of pollen!
51
Columbia University has developed an artificial tree that passively soaks up carbon dioxide from the air using "leaves" that are 1,000 times more efficient than true leaves that use photosynthesis.
15
Nuclear power prevented an average of over 1.8 million deaths between 1971-2009 as a result of lower air pollution from reduced coal usage according to NASA.
5
During photosynthesis, plants emit light humans can’t see, but NASA can see that light from space - and they've even made maps of it!
21
Airports that are at higher altitudes require a longer airstrip due to lower air density.
39
A single speck of dust is half way in size between a subatomic particle and the Earth.
15